Service manual Caterpillar 320D GC Excavator with C6.4 Engine | PCM00001-UP

Air Conditioning and Heating R134a for All Caterpillar Machines
– Refrigerant Compressor
– System Capacities for Refrigerant (Off-Highway Trucks)
– General Information
– Identifying the Refrigerant
– Identifying the Air Conditioning System
– Identifying the Heating System
– Refrigerant Expansion Valve System
– Refrigerant Orifice Tube System
– Refrigerant Compressor
– Refrigerant Condenser
– Refrigerant Receiver-Dryer
– Refrigerant Compressor
– Refrigerant Expansion Valve
– In-line Refrigerant Dryer
– Refrigerant Orifice Tube Assembly
– Evaporator Coil
– Refrigerant Accumulator
– Refrigerant Compressor Protection System
– Temperature Control
– Pressure Switch (Refrigerant)
– Cab Pressurization and Filtration System
– Condensate Drainage System
– Refrigerant Compressor
– Service Intervals
– Glossary of Terms
– Required Tools
– Machine Preparation for Troubleshooting
– General Troubleshooting Information
– General Troubleshooting Information
– Visual Inspection (Troubleshooting)
– Air Conditioning System Troubleshooting
– Heating System Troubleshooting
– Automatic Temperature Control System (ECM Controlled)
– Refrigerant Compressor
– Troubleshooting Heating and Air Conditioning Control System
– Troubleshooting Heating and Air Conditioning Control System
– Automatic Temperature Control Panel Troubleshooting – 584
– Troubleshooting Condensate Drainage System
– Machine Preparation for Testing and Adjusting
– Air Conditioning Performance – Test
– Refrigerant Leakage – Test
– Manifold Gauge Set (Refrigerant) – Install
– Refrigerant Recovery
– Refrigerant System – Flush
– Refrigerant Compressor
– Refrigerant Oil – Test
– Refrigerant Compressor – Test
– Refrigerant System – Evacuate
– Refrigerant System – Charge
– Manifold Gauge Set (Refrigerant) – Remove
– Compressor Protection System – Test
– Electronic Heat Control – Test
– Heater Performance – Test
– Heating and Air Conditioning Service Publications
– General Information
– Refrigerant Compressor
– Machine Preparation for Disassembly and Assembly
– Air Conditioner Lines – Remove and Install
– Refrigerant Compressor – Remove and Install
– Refrigerant Accumulator – Remove and Install
– Refrigerant Expansion Valve – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– In-Line Refrigerant Dryer – Remove and Install
– Refrigerant Orifice Tube Assembly – Remove and Install
– Refrigerant Compressor
– System Capacities for Refrigerant (Motor Graders)
– System Capacities for Refrigerant (Off-Highway Trucks) –
– Refrigerant Compressor
Air Conditioning and Heating
– Actuator (Air Conditioner Control)
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioning and Heating System Sensor Operation
– Air Conditioning E11 – Recirculation Sensor (Open Circuit)
– Air Conditioning E12 – Recirculation Sensor (Short Circuit)
– Air Conditioning E13 – Fresh Air Sensor (Open Circuit)
– Air Conditioning E14 – Fresh Air Sensor (Short Circuit)
– Air Conditioning E15 – Water Temperature Sensor (Open
– Air Conditioning E16 – Water Temperature Sensor (Short
– Air Conditioning E21 – Evaporator Sensor (Open Circuit)
– Air Conditioning E22 – Evaporator Sensor (Short Circuit)
– Air Conditioning E43 – Damper (Air Outlet)
– Air Conditioning E44 – Damper Error
– Air Conditioning System
– Air Conditioning System
– Air Conditioning System Troubleshooting
– Air Conditioning System Troubleshooting
– Blower Motor
– Blower Motor
– Control Module
– Control Module – Heater Only
– Control Panel (Air Conditioner and Heater)
– Control Panel (Cab Heater)
– Evaporator Coil
– General Information
– General Troubleshooting Information
– Heater Core (Cab)
– Heater System (Cab) – Heater Only
– Heating System Troubleshooting
– Machine Preparation for Troubleshooting
– Manifold Gauge Set (Refrigerant) – Install
– Manifold Gauge Set (Refrigerant) – Remove
– Pressure Switch (Refrigerant Pressure Cutoff)
– Pressure Switch (Refrigerant Pressure Cutoff)
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor
– Refrigerant Compressor Oil – Check
– Refrigerant Condenser
– Refrigerant Condenser
– Refrigerant Expansion Valve
– Refrigerant Leakage – Test
– Refrigerant Receiver-Dryer
– Refrigerant Recovery
– Refrigerant System – Charge
– Refrigerant System – Evacuate
– Refrigerant System – Flush
– Required Tools
– Speed Control
– System Capacities for Refrigerant (Excavators) – 307D to 390D
– Troubleshooting Faults With Service Codes
– Visual Inspection
Disassembly and Assembly 320D Excavator C6.4 Engine Supplement
– Aftercooler – Remove and Install
– Air Cleaner – Remove and Install
– Alternator – Remove and Install
– Battery – Remove and Install
– Electric Starting Motor – Remove and Install
– Engine – Install
– Engine – Remove
– Engine Electronic Control – Remove and Install
– Engine Front Mount – Install
– Engine Front Mount – Remove
– Engine Oil Filter and Oil Filter Base – Remove and Install
– Engine Rear Mount – Install
– Engine Rear Mount – Remove
– Fan – Install
– Fan – Remove
– Fan – Remove and Install
– Fan Drive – Remove and Install
– Fuel Filter (Secondary) and Fuel Filter Base – Remove and
– Fuel Filter and Water Separator Base – Remove and Install
– Fuel Priming Pump – Remove and Install
– Fuel Transfer Pump – Remove and Install
– Fuel Transfer Pump and Unit Injector Hydraulic Pump –
– Hood – Remove and Install
– Hydraulic Oil Cooler – Remove and Install
– Muffler – Remove and Install
– Radiator – Remove and Install
– Radiator and Hydraulic Oil Cooler – Install
– Radiator and Hydraulic Oil Cooler – Remove
– Refrigerant Compressor – Remove and Install
– Refrigerant Condenser – Remove and Install
– Refrigerant Receiver-Dryer – Remove and Install
– System Pressure – Release
– Turbocharger – Remove and Install
– Water Pump – Remove and Install
– Water Temperature Regulator – Remove and Install
Disassembly and Assembly 320D Excavator Machine Systems
– Accumulator – Remove and Install
– Actuator Motor (Air Distributor) – Remove and Install
– Auxiliary Pilot Valve (Straight Travel) – Assemble
– Auxiliary Pilot Valve (Straight Travel) – Disassemble
– Auxiliary Pilot Valve (Straight Travel) – Install
– Auxiliary Pilot Valve (Straight Travel) – Remove
– Blower Motor (Air Conditioner, Heater) – Remove and Install
– Boom – Install
– Boom – Remove
– Boom Bearings and Seals – Remove and Install
– Boom Cylinder – Remove and Install
– Boom Lighting – Remove and Install
– Bucket – Remove and Install
– Bucket Cylinder – Remove and Install
– Bucket Linkage – Remove and Install
– Bucket Linkage Bearings and Seals – Install
– Bucket Linkage Bearings and Seals – Remove
– Cab – Install
– Cab – Install
– Cab – Remove
– Cab – Remove
– Check Valve (Cooler Bypass) – Assemble
– Check Valve (Cooler Bypass) – Disassemble
– Check Valve (Cooler Bypass) – Install
– Check Valve (Cooler Bypass) – Remove
– Control Manifold (Pilot Oil) – Assemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Disassemble – Hydraulic Lockout,
– Control Manifold (Pilot Oil) – Install
– Control Manifold (Pilot Oil) – Remove
– Control Module (Automatic Temperature Control Unit) –
– Counterbalance Valve (Travel) – Assemble
– Counterbalance Valve (Travel) – Disassemble
– Counterbalance Valve (Travel) – Install
– Counterbalance Valve (Travel) – Remove
– Counterweight – Remove and Install
– Duo-Cone Conventional Seals – Install
– Evaporator Coil – Install
– Evaporator Coil – Remove
– Final Drive – Assemble
– Final Drive – Disassemble
– Final Drive – Install
– Final Drive – Remove
– Front Idler, Recoil Spring and Hydraulic Track Adjuster –
– Front Idler, Recoil Spring and Hydraulic Track Adjuster –
– Fuel Tank – Install
– Fuel Tank – Remove
– Gear Pump (Pilot) – Assemble
– Gear Pump (Pilot) – Disassemble
– Gear Pump (Pilot) – Install
– Gear Pump (Pilot) – Remove
– Heater Core – Install
– Heater Core – Remove
– Heating and Air Conditioning Unit – Install
– Heating and Air Conditioning Unit – Remove
– Hydraulic Lockout Control – Assemble
– Hydraulic Lockout Control – Disassemble
– Hydraulic Lockout Control – Install
– Hydraulic Lockout Control – Remove
– Hydraulic Tank – Install
– Hydraulic Tank – Remove
– Hydraulic Track Adjusters – Assemble
– Hydraulic Track Adjusters – Disassemble
– Load Control Valve (Boom Cylinder) – Assemble
– Load Control Valve (Boom Cylinder) – Disassemble
– Load Control Valve (Boom Cylinder) – Install
– Load Control Valve (Boom Cylinder) – Remove
– Load Control Valve (Stick Cylinder) – Assemble
– Load Control Valve (Stick Cylinder) – Disassemble
– Load Control Valve (Stick Cylinder) – Install
– Load Control Valve (Stick Cylinder) – Remove
– Main Control Valve – Assemble
– Main Control Valve – Disassemble
– Main Control Valve – Install
– Main Control Valve – Remove
– Main Hydraulic Pump – Assemble
– Main Hydraulic Pump – Disassemble
– Main Hydraulic Pump – Install
– Main Hydraulic Pump – Remove
– Oil Filter (Hydraulic, Return) – Install
– Oil Filter (Hydraulic, Return) – Remove
– Operator Console – Remove and Install
– Pilot Valve (Joystick) – Assemble
– Pilot Valve (Joystick) – Disassemble
– Pilot Valve (Joystick) – Install
– Pilot Valve (Joystick) – Remove
– Pilot Valve (Travel) – Assemble
– Pilot Valve (Travel) – Disassemble
– Pilot Valve (Travel) – Install
– Pilot Valve (Travel) – Remove
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Pressure Reducing Valve (Implement and Swing Priority) –
– Recoil Spring – Assemble
– Recoil Spring – Disassemble
– Refrigerant Receiver-Dryer – Remove and Install
– Refueling Pump – Install
– Refueling Pump – Remove
– Relief Valve (Pilot) – Install
– Relief Valve (Pilot) – Remove
– Seat – Remove and Install
– Seat Support – Remove and Install
– Seat Suspension – Remove and Install
– Selector Valve (Alternate Pattern Control) – Assemble
– Selector Valve (Alternate Pattern Control) – Disassemble
– Selector Valve (Alternate Pattern Control) – Install
– Selector Valve (Alternate Pattern Control) – Remove
– Sprocket – Remove and Install
– Stick – Install
– Stick – Remove
– Stick Bearings and Seals – Install
– Stick Bearings and Seals – Remove
– Stick Cylinder – Remove and Install
– Storage Box and Covers (Cab) – Remove and Install
– Swing Cushion Valve – Assemble – Fine Swing Solenoid
– Swing Cushion Valve – Disassemble – Fine Swing Solenoid
– Swing Cushion Valve – Install
– Swing Cushion Valve – Remove
– Swing Drive – Assemble
– Swing Drive – Disassemble
– Swing Gear and Bearing – Install
– Swing Gear and Bearing – Remove
– Swing Motor – Assemble
– Swing Motor – Disassemble
– Swing Motor – Install
– Swing Motor – Remove
– Swing Motor and Swing Drive – Install
– Swing Motor and Swing Drive – Remove
– Swivel – Assemble
– Swivel – Disassemble
– Swivel – Install
– Swivel – Remove
– System Pressure – Release
– Track – Connect
– Track – Separate
– Track Carrier Roller – Install
– Track Carrier Roller – Remove
– Track Roller – Install
– Track Roller – Remove
– Travel Motor – Assemble
– Travel Motor – Disassemble
– Travel Motor – Install
– Travel Motor – Remove
– Upper Frame and Undercarriage Frame – Connect
– Upper Frame and Undercarriage Frame – Separate
– Window Wiper Motor – Remove and Install – Upper
Disassembly and Assembly C6.4 Engine for Caterpillar Built Machines
– Air Inlet Heater – Remove and Install
– Alternator – Remove and Install
– Bearing Clearance – Check
– Boost Pressure Sensor – Remove and Install
– Camshaft – Remove and Install
– Camshaft Bearings – Remove and Install
– Camshaft Gear – Remove and Install
– Connecting Rod Bearings – Install
– Connecting Rod Bearings – Remove
– Coolant Temperature Sensor – Remove and Install
– Crankcase Breather – Remove and Install
– Crankshaft – Install
– Crankshaft – Remove
– Crankshaft Front Seal – Install
– Crankshaft Front Seal – Remove
– Crankshaft Gear – Remove and Install
– Crankshaft Main Bearings – Install
– Crankshaft Main Bearings – Remove
– Crankshaft Position Sensor – Remove and Install – Primary
– Crankshaft Pulley – Remove and Install
– Crankshaft Rear Seal – Install
– Crankshaft Rear Seal – Remove
– Cylinder Head – Install
– Cylinder Head – Remove
– Cylinder Liner – Install
– Cylinder Liner – Remove
– Electric Starting Motor – Remove and Install
– Electronic Control Module – Remove and Install
– Electronic Unit Injector – Install
– Electronic Unit Injector – Remove
– Engine Oil Bypass Valve – Remove and Install
– Engine Oil Cooler – Assemble
– Engine Oil Cooler – Disassemble
– Engine Oil Cooler – Install
– Engine Oil Cooler – Remove
– Engine Oil Pan – Install
– Engine Oil Pan – Remove
– Engine Oil Pressure Sensor – Remove and Install
– Engine Oil Pump – Install
– Engine Oil Pump – Remove
– Engine Oil Pump Relief Valve – Remove and Install
– Engine Oil Relief Valve – Remove and Install
– Exhaust Manifold – Remove and Install
– Fan Drive – Assemble
– Fan Drive – Disassemble
– Fan Drive – Install
– Fan Drive – Remove
– Flywheel – Install
– Flywheel – Remove
– Flywheel Housing – Remove and Install
– Front Plate – Install
– Front Plate – Remove
– Fuel Filter Base – Remove and Install
– Fuel Injection Lines – Install
– Fuel Injection Lines – Remove
– Fuel Injection Pump – Install
– Fuel Injection Pump – Remove
– Fuel Injection Pump Gear – Install
– Fuel Injection Pump Gear – Remove
– Fuel Manifold (Rail) – Install
– Fuel Manifold (Rail) – Remove
– Fuel Pressure Sensor – Remove and Install
– Fuel Priming Pump – Remove and Install
– Fuel Transfer Pump – Install
– Fuel Transfer Pump – Remove
– Gear Group (Front) – Install – Idler Gear Only
– Gear Group (Front) – Remove – Idler Gear Only
– Housing (Front) – Install
– Housing (Front) – Remove
– Idler Pulley – Assemble
– Idler Pulley – Disassemble
– Idler Pulley – Install
– Idler Pulley – Remove
– Inlet Air Temperature Sensor – Remove and Install
– Inlet and Exhaust Valve Guides – Remove and Install
– Inlet and Exhaust Valve Seat Inserts – Remove and Install
– Inlet and Exhaust Valve Springs – Remove and Install
– Inlet and Exhaust Valves – Remove and Install
– Inlet Manifold – Remove and Install
– Lifter Group – Remove and Install
– Muffler – Remove and Install
– Piston Cooling Jets – Remove and Install
– Pistons and Connecting Rods – Assemble
– Pistons and Connecting Rods – Disassemble
– Pistons and Connecting Rods – Install
– Pistons and Connecting Rods – Remove
– Position Sensor (Fuel Injection Pump) – Remove and Install
– Rocker Shaft – Assemble
– Rocker Shaft – Disassemble
– Rocker Shaft and Pushrod – Install
– Rocker Shaft and Pushrod – Remove
– Turbocharger – Assemble
– Turbocharger – Disassemble
– Turbocharger – Install
– Turbocharger – Remove
– Valve Mechanism Cover – Remove and Install
– Valve Mechanism Cover Base – Remove and Install
– Water Pump – Assemble
– Water Pump – Disassemble
– Water Pump – Install
– Water Pump – Remove
– Water Temperature Regulator – Remove and Install
Mobile Hydraulic Power Units Machine
– Calibration
– Charging System – Test
– Diagnostic Capabilities
– Diagnostic Code List
– Diagnostic Operation
– Electrical Component and Connector Locations
– Electrical Connector – Inspect
– Electronic Control Module (ECM) – Configure
– Electronic Control Module (ECM) – Flash Program
– Electronic Control Module (ECM) – Replace
– Electronic Control Module (Machine)
– Emerging Symptom Information
– General Information
– General Information
– Glossary of Electrical Terms
– Governor Actuator – Replace
– MID 039 – CID 0041 – FMI 06
– MID 039 – CID 0096 – FMI 04
– MID 039 – CID 0096 – FMI 05
– MID 039 – CID 0110 – FMI 04
– MID 039 – CID 0110 – FMI 09
– MID 039 – CID 0167 – FMI 12
– MID 039 – CID 0168 – FMI 05
– MID 039 – CID 0171 – FMI 03
– MID 039 – CID 0171 – FMI 04
– MID 039 – CID 0190 – FMI 08
– MID 039 – CID 0246 – FMI 12
– MID 039 – CID 0247 – FMI 12
– MID 039 – CID 0248 – FMI 12
– MID 039 – CID 0254 – FMI 12
– MID 039 – CID 0262 – FMI 06
– MID 039 – CID 0271 – FMI 06
– MID 039 – CID 0291 – FMI 03
– MID 039 – CID 0291 – FMI 05
– MID 039 – CID 0291 – FMI 06
– MID 039 – CID 0362 – FMI 03
– MID 039 – CID 0362 – FMI 05
– MID 039 – CID 0362 – FMI 06
– MID 039 – CID 0374 – FMI 03
– MID 039 – CID 0374 – FMI 05
– MID 039 – CID 0374 – FMI 06
– MID 039 – CID 0444 – FMI 03
– MID 039 – CID 0444 – FMI 06
– MID 039 – CID 0544 – FMI 08
– MID 039 – CID 0581 – FMI 03
– MID 039 – CID 0581 – FMI 05
– MID 039 – CID 0581 – FMI 06
– MID 039 – CID 0586 – FMI 05
– MID 039 – CID 0586 – FMI 12
– MID 039 – CID 0588 – FMI 09
– MID 039 – CID 0590 – FMI 09
– MID 039 – CID 0598 – FMI 03
– MID 039 – CID 0598 – FMI 05
– MID 039 – CID 0598 – FMI 06
– MID 039 – CID 0600 – FMI 04
– MID 039 – CID 0735 – FMI 03
– MID 039 – CID 0735 – FMI 05
– MID 039 – CID 0735 – FMI 06
– MID 039 – CID 1129 – FMI 03
– MID 039 – CID 1129 – FMI 04
– MID 039 – CID 1129 – FMI 08
– MID 039 – CID 1130 – FMI 03
– MID 039 – CID 1130 – FMI 04
– MID 039 – CID 1130 – FMI 08
– MID 039 – CID 1160 – FMI 03
– MID 039 – CID 1160 – FMI 05
– MID 039 – CID 1160 – FMI 06
– MID 039 – CID 1178 – FMI 03
– MID 039 – CID 1178 – FMI 04
– MID 039 – CID 1178 – FMI 08
– MID 039 – CID 1522 – FMI 03
– MID 039 – CID 1522 – FMI 05
– MID 039 – CID 1522 – FMI 06
– MID 039 – CID 1523 – FMI 03
– MID 039 – CID 1523 – FMI 05
– MID 039 – CID 1523 – FMI 06
– MID 039 – CID 1525 – FMI 03
– MID 039 – CID 1525 – FMI 05
– MID 039 – CID 1525 – FMI 06
– MID 039 – CID 1590 – FMI 03
– MID 039 – CID 1590 – FMI 05
– MID 039 – CID 1590 – FMI 06
– MID 039 – CID 1593 – FMI 03
– MID 039 – CID 1593 – FMI 05
– MID 039 – CID 1593 – FMI 06
– MID 039 – CID 1594 – FMI 03
– MID 039 – CID 1594 – FMI 05
– MID 039 – CID 1594 – FMI 06
– MID 039 – CID 1595 – FMI 03
– MID 039 – CID 1595 – FMI 05
– MID 039 – CID 1595 – FMI 06
– MID 039 – CID 1596 – FMI 03
– MID 039 – CID 1596 – FMI 05
– MID 039 – CID 1596 – FMI 06
– MID 039 – CID 1597 – FMI 03
– MID 039 – CID 1597 – FMI 05
– MID 039 – CID 1597 – FMI 06
– MID 039 – CID 1598 – FMI 03
– MID 039 – CID 1598 – FMI 05
– MID 039 – CID 1598 – FMI 06
– MID 039 – CID 1609 – FMI 03
– MID 039 – CID 1609 – FMI 04
– MID 039 – CID 1609 – FMI 08
– MID 039 – CID 1657 – FMI 03
– MID 039 – CID 1657 – FMI 04
– MID 039 – CID 1657 – FMI 08
– MID 039 – CID 1658 – FMI 03
– MID 039 – CID 1658 – FMI 04
– MID 039 – CID 1658 – FMI 08
– MID 039 – CID 1665 – FMI 03
– MID 039 – CID 1665 – FMI 05
– MID 039 – CID 1665 – FMI 06
– MID 039 – CID 1666 – FMI 03
– MID 039 – CID 1666 – FMI 05
– MID 039 – CID 1666 – FMI 06
– MID 039 – CID 1931 – FMI 03
– MID 039 – CID 1931 – FMI 05
– MID 039 – CID 1931 – FMI 06
– MID 039 – CID 2265 – FMI 03
– MID 039 – CID 2265 – FMI 04
– MID 039 – CID 2265 – FMI 08
– MID 039 – CID 2266 – FMI 03
– MID 039 – CID 2266 – FMI 04
– MID 039 – CID 2266 – FMI 08
– MID 039 – CID 2275 – FMI 03
– MID 039 – CID 2275 – FMI 06
– MID 039 – CID 2280 – FMI 03
– MID 039 – CID 2300 – FMI 09
– MID 039 – CID 2420 – FMI 03
– MID 039 – CID 2420 – FMI 05
– MID 039 – CID 2420 – FMI 06
– MID 039 – CID 2425 – FMI 03
– MID 039 – CID 2425 – FMI 04
– MID 039 – CID 2425 – FMI 13
– Related Components
– Sensors
– Service Tools
– Solenoids
– Speed Sensor – Adjust
– Switches
– Symptom Troubleshooting
– System Operation
– System Schematic
– Using Caterpillar Electronic Technician to Determine
– Using the Operator Monitor to Determine Diagnostic Codes
– Wiring Harness (Open Circuit) – Test
– Wiring Harness (Short Circuit) – Test
Schematic Air Conditioning Electrical System
– RENR7299-11_OUT
– RENR7299-11_IN
Schematic Caterpillar 320D Excavator Electrical System
– Features
– Cover Page
– Information
– Component Location
– Connector Location
– Schematic
– Machine Views
– Cab Rear (LH)
– Cab Wiring
– Engine
– Machine Component And Connector Locations
Schematic Caterpillar 320D Excavator Electrical System
Schematic Caterpillar 320D and 320D L Excavator Hydraulic System
– Features
– Cover Page
– Information
– Component Location
– Tap Location
– Fluid Power Symbols
– Electrical Symbols
– Schematic
– Machine Views
– Machine Component Locations
– Filter Gp
– Motor Gp – Piston (Travel)
– Motor Gp – Swing And Swivel
– Pump Gp – Piston (Main)
– Valve Gp – Main Control
Schematic Caterpillar 320D and 323D Excavator (C7.1 Engine Repower) Electrical System
Specifications 320D and 323D Excavators Machine System
– Accumulator (Pilot)
– Accumulator (Pilot)
– Accumulator (Pilot)
– Accumulator (Pilot)
– Air Cleaner – Precleaner
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Air Conditioner Lines
– Auxiliary Hydraulic Lines
– Auxiliary Hydraulic Lines
– Auxiliary Hydraulic Lines
– Auxiliary Hydraulic Lines
– Auxiliary Hydraulic Lines – 2.92 m (9.580 ft) Stick for Medium
– Auxiliary Hydraulic Lines – 3.9 m (12.80 ft) Stick with Quick
– Auxiliary Hydraulic Lines – Coupler Lines for Reach Boom
– Auxiliary Hydraulic Lines – Mass Boom for Medium Pressure
– Auxiliary Hydraulic Lines – Mass Boom with Quick Coupler
– Auxiliary Hydraulic Lines – Quick Coupler
– Auxiliary Hydraulic Lines – Right Boom for Medium Pressure
– Auxiliary Hydraulic Lines – Stick
– Auxiliary Hydraulic Lines – Stick
– Boom – 2.421 m (7.9429 ft)
– Boom – 3.3 m (10.83 ft)
– Boom – 5.200 m (17.0604 ft)
– Boom – 5.675 m (18.6188 ft)
– Boom – 5.7 m (18.70 ft)
– Boom – 6.02 m (19.751 ft)
– Boom – 8.85 m (29.035 ft)
– Boom – 8.85 m (29.035 ft)
– Boom – 8.85 m (29.035 ft)
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines
– Boom Cylinder Lines – Boom Lowering Control
– Boom Cylinder Lines – Boom Lowering Control
– Boom Cylinder Lines – Boom Lowering Control
– Boom Cylinder Lines – Left Hand
– Boom Cylinder Lines – Left Hand
– Boom Cylinder Lines – Load Control Valve
– Boom Cylinder Lines – Right Hand
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines
– Boom Lines – Coupler Lines for Reach Boom
– Boom Lines – Fore
– Bucket – Side Bar Protector
– Bucket Adjuster
– Bucket Adjuster
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Cylinder Lines
– Bucket Linkage
– Bucket Linkage
– Bucket Linkage
– Bucket Linkage
– Bucket Linkage – B1 Family
– Bucket Linkage – B1 Family
– Bucket Linkage – B1 Family
– Bucket Linkage – CB2 Family
– Bucket Linkage – CB2 Family
– Bucket Sidecutter
– Bucket Sidecutter
– Bucket Sidecutter
– Bucket Sidecutter
– Cab
– Cab
– Cab
– Cab
– Cab – Air Duct
– Cab – Internal
– Cab – Protection Visor
– Cab – Window Guard
– Chassis Lighting
– Check Valve
– Check Valve (Return Lines)
– Check Valve (Return Lines)
– Check Valve (Return Lines)
– Check Valve (Return Lines)
– Check Valve (Stick Drift Reduction)
– Circuit Breakers
– Communication Electronic Control Module (Product Link)
– Communication Electronic Control Module (Product Link)
– Control Manifold (Pilot Oil)
– Control Manifold (Pilot Oil)
– Control Valve
– Control Valve
– Control Valve (Auxiliary)
– Control Valve (Auxiliary)
– Control Valve (Auxiliary)
– Control Valve (Auxiliary) – Medium Pressure
– Control Valve (Boom Lowering)
– Control Valve (Stick Lowering)
– Control Valve (Stick Lowering)
– Control Valve – Boom Cylinder Load
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Counterweight
– Drain Line (Muffler)
– Drain Line (Muffler)
– Drain Line (Muffler)
– Drain Line (Work Tool)
– Engine Mounting
– Engine Mounting
– Fasteners – Swing Drive and Final Drive
– Fasteners – Swing Drive and Final Drive
– Fasteners – Swing Drive and Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Front Idler
– Front Idler
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines
– Front Lines – Combined Function
– Front Lines – Medium Pressure
– Front Lines – Medium Pressure
– Front Lines – Single Function
– Front Lines – Universal Quick Coupler
– Front Lines – Variable Adjustable Boom
– Fuel Filter Mounting
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Lines
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank
– Fuel Tank and Mounting
– Fuel Tank and Mounting
– Governor Control
– Governor Control
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Grease Lines
– Handle Control (Travel)
– Handrail
– Heater and Air Conditioner Mounting
– Heater and Air Conditioner Mounting
– Heater Lines
– Heater Lines
– Hoist Solenoid Valve
– Hoist Solenoid Valve – Pilot Lines
– Hood
– Hydraulic Control (Auxiliary Pedal)
– Hydraulic Oil Cooler Lines Group
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Auxiliary)
– Hydraulic Pedal Control (Straight Travel)
– Hydraulic Pedal Control (Straight Travel)
– Hydraulic Pedal Control (Straight Travel)
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank and Filter
– Hydraulic Tank Mounting
– Hydraulic Tank Mounting
– Joystick Control
– Joystick Control
– Joystick Control
– Joystick Control
– Main Control Valve
– Main Control Valve
– Main Control Valve
– Main Control Valve
– Main Hydraulic Pump
– Manifold and Reducing Valve (Pilot Oil)
– Oil Filter (Hydraulic)
– Oil Filter (Hydraulic)
– Oil Filter (Hydraulic) – Case Drain
– Oil Filter (Hydraulic) – Case Drain
– Oil Filter (Return)
– Operator Console
– Operator Console
– Operator Monitor
– Operator Monitor
– Operator Monitor
– Operator Platform
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines
– Pilot Lines – Boom Float
– Pilot Lines – Control Valve
– Pilot Lines – Control Valve
– Pilot Lines – Control Valve
– Pilot Lines – Filter and Pilot Pump
– Pilot Lines – Heavy Lift
– Pilot Lines – Heavy Lift
– Pilot Lines – Joystick and Pedals
– Pilot Lines – Main Control Valve
– Pilot Lines – Main Control Valve
– Pilot Lines – Main Control Valve
– Pilot Lines – Pedal Controls
– Pilot Lines – Pedal Controls
– Pilot Lines – Stick
– Pilot Lines – Stick
– Pilot Lines – Third Pedal and Pilot Valve
– Pilot Oil Filter and Relief Valve
– Pilot Valve
– Pilot Valve
– Pilot Valve (Auxiliary)
– Pilot Valve (Boom Drift Reduction)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (Joystick)
– Pilot Valve (One Way)
– Pilot Valve (Stick Drift Reduction)
– Pilot Valve (Travel)
– Pilot Valve (Travel)
– Pilot Valve (Travel)
– Pilot Valve (Travel)
– Pressure Reducing Valve (Boom and Stick Priority)
– Pressure Reducing Valve (Boom and Stick Priority)
– Pressure Reducing Valve (Boom Priority)
– Pressure Reducing Valve (Boom Priority)
– Pump Coupling
– Pump Coupling
– Pump Coupling
– Pump Coupling – Auxiliary Pump
– Pump Head (Main) – Drive
– Pump Head (Main) – Driven
– Pump Lines
– Pump Lines
– Pump Lines
– Pump Lines
– Pump Lines (Auxiliary) – Medium Pressure
– Pump Lines (Main)
– Pump Lines (Main)
– Pump Lines (Main) – and Hydraulic Oil Cooler Lines
– Pump Lines – Cooler, Pilot Oil
– Quick Coupler (Spindle)
– Quick Coupler Valve
– Recoil Spring
– Refrigerant Compressor
– Refrigerant Compressor Mounting
– Refrigerant Condenser and Mounting
– Relief Valve (Crossover)
– Relief Valve (Line)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main)
– Relief Valve (Main) – Heavy Lift
– Relief Valve (Main) – Heavy Lift
– Relief Valve (Negative Flow Control) – Auxiliary, Combined
– Relief Valve (Pilot)
– Relief Valve (Pilot)
– Relief Valve (Pilot) – Front Lines
– Relief Valve – 1 Way or 2 Way Flow
– Return Lines (Boom Lowering Control)
– Return Lines (Boom Lowering Control)
– Return Lines – Hydraulic Tank
– Return Lines – Hydraulic Tank
– Rollover Protective Structure (ROPS) Mounting
– Seat Belt
– Seat Belt
– Selector Valve (Control Pattern Change)
– Sensor Lines (Overload Warning)
– Sensor Lines (Overload Warning)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pilot Lines)
– Shuttle Valve (Pump Flow Control)
– Shuttle Valve (Pump Flow Control)
– Shuttle Valve (Pump Flow Control)
– Shuttle Valve (Pump Flow Control)
– Shuttle Valve (Pump Flow Control)
– Solenoid Valve (Grapple)
– Solenoid Valve (Proportional Reducing)
– Solenoid Valve (Proportional Reducing)
– Solenoid Valve (Proportional Reducing)
– Solenoid Valve (Quick Coupler)
– Solenoid Valve (Quick Coupler)
– Solenoid Valve (Swing Motor)
– Solenoid Valve (Swing Motor)
– Solenoid Valve (Work Tool) – Relief
– Solenoid Valve (Work Tool, 4-Function)
– Solenoid Valve – Straight Travel
– Sprocket
– Sprocket
– Stick
– Stick – 1.900 m (6.2336 ft)
– Stick – 2.400 m (7.8740 ft)
– Stick – 2.5 m (8.20 ft)
– Stick – 2.5 m (8.20 ft)
– Stick – 2.5 m (8.20 ft)
– Stick – 2.9 m (9.51 ft)
– Stick – 2.9 m (9.51 ft)
– Stick – 2.92 m (9.580 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 2.920 m (9.5801 ft)
– Stick – 3.86 m (12.664 ft)
– Stick – 6.28 m (20.604 ft)
– Stick – 6.28 m (20.604 ft)
– Stick – 6.280 m (20.6037 ft)
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines
– Stick Cylinder Lines – Stick Lowering Control
– Stick Cylinder Lines – Stick Lowering Control
– Stick Cylinder Lines – Stick Lowering Control
– Stick Lines
– Stick Lines
– Stick Lines
– Stick Lines
– Stick Lines – Quick Coupler
– Stick Lines – Quick Coupler
– Swing Cushion Valve
– Swing Cushion Valve – Fine Swing
– Swing Cushion Valve – Fine Swing
– Swing Cushion Valve – Fine Swing
– Swing Drive
– Swing Drive
– Swing Drive
– Swing Drive – Without Motor
– Swing Drive Mounting
– Swing Gear and Bearing
– Swing Gear and Bearing
– Swing Gear and Bearing
– Swing Motor
– Swing Motor
– Swing Motor
– Swing Motor
– Swivel
– Track
– Track
– Track
– Track
– Track Adjuster
– Track Adjuster
– Track Adjuster and Recoil
– Track Adjuster and Recoil
– Track Carrier Roller
– Track Carrier Roller
– Track Roller (Double Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller (Single Flange)
– Track Roller Mounting
– Track Roller Mounting
– Track Roller Mounting
– Track Roller Mounting
– Travel Counterbalance Valve
– Travel Counterbalance Valve
– Travel Counterbalance Valve
– Travel Counterbalance Valve
– Travel Motor
– Travel Motor
– Travel Motor and Mounting
– Travel Motor and Mounting
– Travel Motor and Mounting
– Travel Motor and Mounting
– Travel Motor Guard
– Travel Motor Guard
– Travel Motor Guard
– Travel Motor Lines
– Upper Frame
– Upper Frame
– Upper Frame
– Upper Frame
– Upper Frame
– Vandalism Guard
– Vandalism Guard
– Window Wiper and Washer
– Wiring (Battery)
– Wiring (Battery)
– Wiring (Battery) – Cold Weather
– Wiring (Battery) – Cold Weather
– Wiring (Refueling Pump)
Systems Operation 320D and 323D Excavators Hydraulic System
– Accumulator (Pilot)
– Boom Drift Reduction Valve
– Boom Hydraulic System
– Boom Hydraulic System
– Bucket Hydraulic System
– Bucket Hydraulic System
– Bypass Valve (Return) – Bypass Check Valve
– Check Valve (Load)
– Check Valve (Return Makeup) – Slow Return Check Valve
– Control Valve (Boom Lowering)
– Control Valve (Stick Lowering)
– Control Valve (Straight Travel)
– Cylinders (Boom, Stick and Bucket)
– Displacement Change Valve
– Electronic Control System
– Final Drive
– Final Drive
– Final Drive
– Final Drive
– Gear Pump (Pilot)
– General Information
– Graphic Color Codes
– Hydraulic Filter (Pilot)
– Hydraulic Oil Cooler
– Hydraulic Tank and Filter
– Main Control Valve
– Main Control Valve
– Main Hydraulic Pump
– Main Hydraulic System
– Main Hydraulic System
– Main Hydraulic System
– Medium Pressure Hydraulic System
– Negative Flow Control System
– Negative Flow Control System
– Oil Filter (Return) – Case Drain Filter
– Oil Makeup (Swing System)
– Oil Makeup (Swing System)
– Oil Makeup (Travel System)
– Oil Makeup (Travel System)
– Pilot Hydraulic System
– Pilot Hydraulic System
– Pilot Hydraulic System
– Pilot Valve (Joystick)
– Pilot Valve (Straight Travel)
– Pilot Valve (Swing Parking Brake)
– Pilot Valve (Travel)
– Pump Control (Main Hydraulic) – Main Pump Regulator
– Relief Valve (Cushion Crossover) – Anti-Reaction Valves
– Relief Valve (Cushion Crossover) – Anti-Reaction Valves
– Relief Valve (Line)
– Relief Valve (Main)
– Relief Valve (Main) – Heavy Lift
– Relief Valve (Pilot)
– Relief Valve (Swing)
– Relief Valve (Swing)
– Return Hydraulic System
– Return Hydraulic System
– Solenoid Valve (Fine Swing) – If Equipped
– Solenoid Valve (Hydraulic Lockout)
– Solenoid Valve (Proportional Reducing) – Power Shift System
– Stick Drift Reduction Valve
– Stick Hydraulic System
– Stick Hydraulic System
– Swing Drive
– Swing Hydraulic System
– Swing Hydraulic System
– Swing Motor
– Swivel
– Travel Counterbalance Valve
– Travel Counterbalance Valve
– Travel Hydraulic System
– Travel Hydraulic System
– Travel Hydraulic System
– Travel Motor
– Travel Parking Brake
Systems Operation D Series Excavator Monitoring System
– Input Components
– Performance Mode
– Service Mode
– Maintenance Mode
– Password Change Mode
– Diagnostic Mode
– ECM Information Mode
– Status Mode
– Calibration Mode
– Device Test Mode
– Override Mode
– Output Components
– Configuration Mode
– Tool Program Mode
– System Schematic
– Data Link
– Prestart Monitoring Function
– Warning Operation
– Menu Outline
– Password Entry
– Setting Mode
– Maintenance Information Mode
– General Information
Testing and Adjusting 320D and 323D Excavators Hydraulic System
– Accumulator (Pilot) – Test and Charge
– Cylinder Drift – Check – Empty Bucket
– Cylinder Drift – Check – Loaded Bucket
– Cylinder Speed – Check
– Cylinder Speed – Check
– Engine Performance – Test – Engine Speed
– Engine Performance – Test – Engine Speed
– Gear Pump (Pilot) – Test
– General Testing and Adjusting Information
– Hydraulic System Pressure – Release
– Machine Drift on a Slope – Check
– Main Hydraulic Pump Air – Purge
– Main Pump (Flow) – Test – Constant Horsepower Flow Control
– Operational Checks
– Operational Checks
– Overload Warning – Set – If Equipped
– Pump Control (Negative Flow) – Adjust
– Pump Control (Negative Flow) – Test
– Pump Control (Output Flow) – Adjust
– Relief Valve (Crossover) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Line) – Test and Adjust
– Relief Valve (Main) – Test and Adjust
– Relief Valve (Pilot) – Test and Adjust
– Relief Valve (Swing) – Test and Adjust
– Solenoid Valve (Swing Parking Brake) – Test
– Specifications
– Specifications
– Swing Bearing Movement – Measure
– Swing Motor – Test – Measurement of Case Drain Oil
– Swing Speed and Overswing on Level Ground – Check
– Swing Speed and Overswing on Level Ground – Check
– Swing Speed and Swing Drift on a Slope – Check
– Travel Motor – Test – Measurement of Case Drain Oil
– Travel on Level Ground – Test
– Travel on Level Ground – Test
– Travel on Level Ground – Test – Optional Test
– Travel on Level Ground – Test – Optional Test
– Visual Inspection
Troubleshooting C4.2 and C6.4 Engines for Caterpillar Built Machines
– Acceleration Is Poor or Throttle Response Is Poor
– Alternator Problem – Charging Problem and/or Noisy
– Battery Problem
– CAN Data Link – Test
– Cat Data Link – Test
– Component Location
– Configuration Parameters
– Coolant Contains Fuel
– Coolant Contains Oil
– Coolant Temperature Is High
– Cylinder Is Noisy
– Diagnostic Capabilities
– Diagnostic Trouble Codes
– ECM – Configure
– ECM – Replace
– ECM Does Not Communicate with Other Modules
– ECM Software – Install
– ECM Will Not Accept Factory Passwords
– Electrical Connectors
– Electrical Connectors – Inspect
– Electrical Power Supply – Test
– Electronic Service Tool Does Not Communicate
– Electronic Service Tools
– Engine Cranks but Does Not Start
– Engine Does Not Crank
– Engine Has Early Wear
– Engine Has Mechanical Noise (Knock)
– Engine Misfires, Runs Rough or Is Unstable
– Engine Monitoring System
– Engine Overspeeds
– Engine Speed Does Not Change
– Engine Stalls at Low RPM
– Engine Top Speed Is Not Obtained
– Engine Vibration Is Excessive
– Event Codes
– Exhaust Has Excessive Black Smoke
– Exhaust Has Excessive White Smoke
– Exhaust Temperature Is High
– Factory Passwords
– Fuel Consumption Is Excessive
– Fuel Filter Is Restricted
– Fuel Pressure Is High
– Fuel Pressure Is Low
– Fuel Rail Pressure Is High
– Fuel Rail Pressure Is Low
– Fuel Rail Pump – Test
– Fuel Temperature Is High
– General Information
– Indicator Lamp – Test
– Indicator Lamp Problem
– Injector Response – Test
– Injector Solenoid – Test
– Injector Trim File – Install
– Intake Manifold Air Pressure Is High
– Intake Manifold Air Pressure Is Low
– Intake Manifold Air Temperature Is High
– Oil Consumption Is Excessive
– Oil Contains Coolant
– Oil Contains Fuel
– Oil Pressure Is Low
– Oil Temperature Is High
– Power Is Intermittently Low or Power Cutout Is Intermittent
– Programmable Parameters
– Sensor Signal (Analog, Active) – Test
– Sensor Signal (Analog, Passive) – Test
– Sensor Supply – Test
– Speed Control (PWM) – Test
– Speed Control – Test
– Speed/Timing – Test
– Starting Aid – Test
– Symptom Troubleshooting
– System Overview
– Test ECM Mode
– Valve Lash Is Excessive
– Welding Precaution